A Minneapolis man says he suffered a concussion after receiving a beating from five police officers who attacked him after they noticed he was carrying a gun in his waist band, WCCO-TV in Minnesota reports.

The problem is, Zachary King has a concealed carry permit to lawfully carry the firearm. He argues police still attacked him anyway as he was leaving a local nightclub on Father’s Day night even after he told them he was carrying the permit.

“’I have my conceal and carry, and it’s my gun.’ And soon as I said that he grabbed me by my neck, slammed me against the wall, snatched my gun out the holster, started waving it in the air saying ‘gun, gun, gun,’” King said.

King also told WCCO he said nothing disrespectful to the officers and made no sudden movements that could have warranted the reaction from police.

“Then four other officers just came and slammed me on my face, one of the officers had me by my head just banging it on the sidewalk,” he said.

The permit was eventually discovered but King was reportedly taken to jail anyway.

WCCO has more on the incident:

King says officers eventually went for his back pocket and his wallet to get his weapons permit.

“And he goes like this to show them that I have my card and they stopped beating me,” said King.